ZyXEL Communications Corporation NBG4104 Manual De Usuario

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 Chapter 10 WAN
NBG4104 User’s Guide
75
10.4.3  PPPoE Encapsulation
The NBG4104 supports PPPoE (Point-to-Point Protocol over Ethernet). PPPoE is an IETF standard 
(RFC 2516) specifying how a personal computer (PC) interacts with a broadband modem (DSL, 
cable, wireless, etc.) connection. The PPP over Ethernet option is for a dial-up connection using 
PPPoE.
For the service provider, PPPoE offers an access and authentication method that works with existing 
access control systems (for example Radius).
One of the benefits of PPPoE is the ability to let you access one of multiple network services, a 
function known as dynamic service selection. This enables the service provider to easily create and 
offer new IP services for individuals.
Operationally, PPPoE saves significant effort for both you and the ISP or carrier, as it requires no 
specific configuration of the broadband modem at the customer site.
By implementing PPPoE directly on the NBG4104 (rather than individual computers), the computers 
on the LAN do not need PPPoE software installed, since the NBG4104 does that part of the task. 
Furthermore, with NAT, all of the LANs’ computers will have access.